LF Audio RCA Line Guard
LF Audio RCA Line Guard is backordered and will ship as soon as it is back in stock.
Shipping & delivery
Usually ships in 2–3 business days unless a different lead time is shown on this page. Shipping cost is calculated at checkout (UPS or USPS to the contiguous U.S.).
Shipping policy · Returns · Fitment questions? (561) 207-7988
Delivery and Shipping
Delivery and Shipping
Standard order processing is 2–3 business days unless this product or your order confirmation states a different lead time. Custom-built, made-to-order, backorder, and pre-order items follow their stated lead times.
Enclosures and subwoofer boxes ship for $50 per unit. Other shipping charges are calculated at checkout. Orders outside the contiguous 48 United States may require additional shipping; we will contact you for approval before shipment.
Subwoofer boxes ship UPS Ground where available. Read our Shipping Policy and Return and Refund Policy for delivery, product-specific return windows, and warranty details.
LF Audio RCA Line Guard
LF Audio RCA Line Guard is backordered and will ship as soon as it is back in stock.
Description
Description
LF Audio RCA Line Guard is an inline protection device that sits between your source and amplifier, continuously monitoring signal level, DC bias, and ground integrity. It physically disconnects the signal path when unsafe conditions are detected, shielding sensitive amplifier input stages from bad RCA cables, failing equipment, accidental shorts, overvoltage, DC bias, and ground loops.
You can set the maximum allowed RCA voltage to 2, 4, 6, or 8 Vrms, and the buffered signal path uses an OPA1656 op-amp with less than 0.0001% THD for transparent operation. Sub-millisecond overvoltage detection, DC offset detection with sustained-fault filtering, ground loop current monitoring, solid-state relay isolation, and pop-free mute and restore behavior keep your system protected without altering its sound.
| Brand | LF Audio |
| Product Type | Inline RCA Signal Protector |
| Selectable Max Signal Level | 2 / 4 / 6 / 8 Vrms |
| Signal Path | Ultra-low-distortion buffered (OPA1656, <0.0001% THD) |
| Overvoltage Detection | Sub-millisecond |
| DC Offset Detection | With sustained-fault filtering |
| Ground Loop Monitoring | Current flow through RCA shield connections |
| Signal Isolation | Solid-state relay |
| Indicators | Individual fault LEDs (Bias / Peak / Ground Loop) plus system status |
Fitment & installation
Fitment & installation
Check the selected part against your vehicle. Need help? Call (561) 207-7988.
Selected part: RLG
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Read FOX’s application notes for part 987-24-001 (rear shock)
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